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39 条记录 (耗时 0.023 秒)

    Circuit for driving a switching transistor
    1.
    发明授权
    Circuit for driving a switching transistor 失效
    用于驱动开关晶体管的电路

    公开(公告)号：US4481431A

    公开(公告)日：1984-11-06

    申请号：US601735

    申请日：1984-04-19

    申请人： Hisao Nishino ,  Shigeru Kondo

    发明人： Hisao Nishino ,  Shigeru Kondo

    IPC分类号： H03K17/04 ,  H03K17/00 ,  H03K17/0424 ,  H03K17/60 ,  H03K17/61 ,  H03K3/33

    CPC分类号： H03K17/601 ,  H03K17/0424 ,  H03K2217/0036

    摘要： A circuit for driving a switching transistor which includes a driving pulse transformer having a primary winding to which a switching pulse is applied, a secondary winding connected to the base and the emitter of the switching transistor to turn on the switching transistor by the switching pulse applied to the primary winding, and a third winding. The third winding is connected to the emitter or the collector of the switching transistor so that the current flowing through the switching transistor of the on-condition flows through the third winding and induces a current on the secondary winding which is inverse to a current induced on the secondary winding by the switching pulse applied to the primary winding. The base-storaged carrier is rapidly drawn out after lapse of the switching pulse so that power dissipation is considerably reduced and high speed switching operation can be effected.

    摘要翻译： 一种用于驱动开关晶体管的电路，包括具有施加开关脉冲的初级绕组的驱动脉冲变压器，连接到开关晶体管的基极和发射极的次级绕组，以通过施加的开关脉冲导通开关晶体管 到初级绕组和第三绕组。 第三绕组连接到开关晶体管的发射极或集电极，使得流过导通状态的开关晶体管的电流流过第三绕组，并且在次级绕组上产生与所感应的电流相反的电流 次级绕组由开关脉冲施加到初级绕组。 经过开关脉冲之后，基本存储的载体被快速地拉出，使得功率消耗大大降低，并且可以实现高速切换操作。

    Multi-output-type power supply devices using separately-exciting-type switching regulators
    2.
    发明授权
    Multi-output-type power supply devices using separately-exciting-type switching regulators 失效
    多输出型电源设备使用单独激励型开关调节器

    公开(公告)号：US4449173A

    公开(公告)日：1984-05-15

    申请号：US363484

    申请日：1982-03-30

    申请人： Hisao Nishino ,  Shigeru Kondo

    发明人： Hisao Nishino ,  Shigeru Kondo

    IPC分类号： H02M3/28 ,  H02M3/335 ,  G05F1/64

    CPC分类号： H02M3/33561

    摘要： A multi-output-type stabilized DC power supply device using separately-exciting switching regulators which includes a single pulse generator. The output of the single pulse generator drives a DC-AC inverter and a plurality of pulse signals are obtained on a plurality of secondary windings of the DC-AC inverter. The pulse signals are distributed to respective pulse-width modulators of the switching regulators and are modulated thereat by respective error signals. The DC power of each pulse-width modulator is obtained by rectifying the pulse signal applied thereto.

    摘要翻译： 一种多输出型稳定的直流电源装置，其使用单个激励的开关调节器，其包括单个脉冲发生器。 单脉冲发生器的输出驱动DC-AC逆变器，并且在DC-AC逆变器的多个次级绕组上获得多个脉冲信号。 脉冲信号被分配到开关调节器的相应脉冲宽度调制器，并通过相应的误差信号进行调制。 通过对施加到其上的脉冲信号进行整流，获得各脉冲宽度调制器的直流电力。

    Camera, aperture controlling method and apparatus, lens controlling method and apparatus, and edging amount controlling method and apparatus
    4.
    发明授权
    Camera, aperture controlling method and apparatus, lens controlling method and apparatus, and edging amount controlling method and apparatus 有权
    相机，光圈控制方法和装置，透镜控制方法和装置以及边缘量控制方法和装置

    公开(公告)号：US07995138B2

    公开(公告)日：2011-08-09

    申请号：US11889895

    申请日：2007-08-17

    申请人： Akihisa Yamazaki ,  Atsushi Misawa ,  Shigeru Kondo ,  Michitaka Nakazawa

    发明人： Akihisa Yamazaki ,  Atsushi Misawa ,  Shigeru Kondo ,  Michitaka Nakazawa

    IPC分类号： H04N5/238 ,  H04N5/235 ,  G03B7/00

    CPC分类号： H04N5/2352 ,  H04N5/23212 ,  H04N5/23245 ,  H04N5/23293 ,  H04N5/23296 ,  H04N5/2351 ,  H04N5/238

    摘要： Maximum and minimum aperture sizes are regulated with regard to a diaphragm in order to secure predetermined optical capability in an optical unit which includes a taking lens and the diaphragm. In normal taking, the diaphragm is used within a normal taking range from the maximum to the minimum aperture sizes. In the present invention, an aperture size which is larger than the maximum size and a size which is smaller than the minimum size (extra aperture size or extra small size) are respectively set at outside the range that secures the capability. The aperture sizes of the diaphragm at outside the specified range are used at least for one of the following: automatic exposure (AE) adjustment, auto focus (AF) adjustment, electronic zoom, displaying a moving image, taking for recording the moving image, and taking under a low resolution by thinning out pixels.

    摘要翻译： 为了在包括拍摄镜头和隔膜的光学单元中确保预定的光学能力，最大和最小光圈尺寸被调节。 在正常拍摄中，隔膜在从最大孔径尺寸到最小孔径尺寸的正常拍摄范围内使用。 在本发明中，大于最大尺寸的孔径尺寸和小于最小尺寸（额外孔径尺寸或超小尺寸）的尺寸分别设定在保证该能力的范围之外。 至少在以下之一中使用隔膜的孔径尺寸：至少自动曝光（AE）调整，自动对焦（AF）调节，电子变焦，显示运动图像，拍摄运动图像， 并通过减少像素来降低分辨率。

    Exposure control apparatus for electronic still camera having a through the lens light measuring system
    8.
    发明授权
    Exposure control apparatus for electronic still camera having a through the lens light measuring system 失效
    具有通过透镜光测量系统的电子静态照相机的曝光控制装置

    公开(公告)号：US5081535A

    公开(公告)日：1992-01-14

    申请号：US596659

    申请日：1990-10-11

    申请人： Shigeru Kondo ,  Akiro Aoki

    发明人： Shigeru Kondo ,  Akiro Aoki

    IPC分类号： G03B7/097 ,  G03B9/02 ,  G03B9/04 ,  H04N5/235 ,  H04N5/238 ,  H04N5/335 ,  H04N5/341 ,  H04N5/353 ,  H04N5/359 ,  H04N5/372 ,  H04N5/376

    CPC分类号： H04N5/2352

    摘要： In an electronic still camera, an aperture plate having a number of different apertures and shading portions is provided. When picking up an image, one of the apertures that is selected depending on a light measurement value is inserted in an exposure light path to start exposure of a solid state imaging device simultaneously with the start of a charge storage time thereof. After the charge storage time, the aperture plate is moved by a driving device to insert one of the shading portions in the exposure light path in place of the aperture so as to shade the solid state imaging device.

    摘要翻译： 在电子静态照相机中，提供具有多个不同孔径和遮蔽部分的孔板。 当拍摄图像时，根据光测量值选择的孔中的一个插入曝光光路中，以在其开始电荷存储时间的同时开始固态成像装置的曝光。 在电荷存储时间之后，孔板通过驱动装置移动，以将曝光光路中的一个阴影部分代替孔径，以遮蔽固态成像装置。